stolen 1988 Specialized Rockhopper

stolen from my apartment building while I was at work. Mine and several other bikes stolen from the storage room in the basement of the building, normally you need a key to get into the basement and the storage room, but sometimes the doors to both are open. I was unable to lock my bike up due to clutter of other bikes and furniture surrounding the bike racks and did not want to leave it outside because of some bad weather. It is an old maroon specialized rockhopper or Hard rock (not sure because I bought it last year from a sale and never really looked into the name or serial number). It did have a U lock on it and the seat is fairly worn down